I'm Her Guinea Pig!
Manabi no Sono CH2
[Intoku.info (Endou Hiroto)] Shishunki no Sister wa Moteamashiteru kara Otokonoko o Manabitai♥ [Digital]
Bowsette's Research
(C89) [uraya (uraura)] Yome Manabi (Otoyomegatari)